Recurrent Infective Endocarditis of the Mitral Valve after Orthotopic Heart Transplantation

Eur J Case Rep Intern Med. 2024 Apr 22;11(6):004528. doi: 10.12890/2024_004528. eCollection 2024.

Abstract

Introduction: Orthotopic heart transplantation is the gold standard for the treatment of advanced heart failure in the absence of contraindications. Infective endocarditis is a rare complication in patients after heart transplantation. The treatment of endocarditis after heart transplantation is challenging since there is a need for ongoing immunosuppression.

Case description: We present the case of a 51-year-old orthotopic heart transplant recipient enrolled in a chronic dialysis program, in whom we diagnosed and successfully treated recurrent infective endocarditis of the mitral valve caused by Enterococcus and Enterobacter species. Despite the complicated course of the disease, the treatment was successful.

Conclusions: Recurrent infective endocarditis after heart transplantation can be treated successfully with a multidisciplinary approach and robust antimicrobial therapy.

Learning points: There is a high risk of bacteraemia and subsequent endocarditis in patients with recurrent catheter-related sepsis.The spectrum of bacteria causing endocarditis in patients after heart transplantation differs from that in the general population.Scrupulous targeted antibiotic treatment is warranted for the treatment of immunosuppressed patients with endocarditis.

Keywords: Immunosuppression; antibiotics; bacteraemia; catheter sepsis; haemodialysis.